The following table shows our cash and cash equivalents and
capitalization as of September 30, 2017:

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on a historical basis;

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on an as adjusted basis, after giving effect to the following: (i) the repurchase of 642,612 shares of our common stock for an aggregate
purchase price of approximately $89.4 million, including commissions and fees, during the period from October 1, 2017 through December 4, 2017, pursuant to our previously announced stock repurchase program, (ii) the payment of approximately $445.0
million for acquisitions in the United States, (iii) the payment of approximately $487.1 million for an acquisition in Mexico and (iv) additional borrowings of $465.0 million and $615.0 million under the 2013 Credit Facility and the 2014 Credit
Facility, respectively, which were primarily used to fund acquisitions; and

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on an as further adjusted basis, after giving effect to the receipt of approximately $1,382.9 million in this offering, after deducting
discounts and commissions payable to the underwriters and estimated expenses payable by us, and the use of the net proceeds to repay existing outstanding indebtedness, including approximately $345.7 million of the net proceeds to repay existing
outstanding indebtedness under the 2013 Credit Facility and approximately $1,037.2 million of the net proceeds to repay existing outstanding indebtedness under the 2014 Credit Facility.

In addition, we have the ability to borrow additional amounts
under the 2013 Credit Facility and the 2014 Credit Facility. You should read the capitalization table below in conjunction with Managements Discussion and Analysis of Financial Condition and Results of Operations and our
consolidated financial statements and related notes, which are incorporated by reference in this prospectus supplement.